diff --git a/src/frostfs_testlib/utils/file_utils.py b/src/frostfs_testlib/utils/file_utils.py
index c2b497f..8839d7f 100644
--- a/src/frostfs_testlib/utils/file_utils.py
+++ b/src/frostfs_testlib/utils/file_utils.py
@@ -45,7 +45,7 @@ def ensure_directory_opener(path, flags):
 # TODO: Do not add {size} to title yet, since it produces dynamic info in top level steps
 # Use object_size dt in future as argument
 @reporter.step("Generate file")
-def generate_file(size: int) -> TestFile:
+def generate_file(size: int, file_name: Optional[str] = None) -> TestFile:
     """Generates a binary file with the specified size in bytes.
 
     Args:
@@ -54,7 +54,11 @@ def generate_file(size: int) -> TestFile:
     Returns:
         The path to the generated file.
     """
-    test_file = TestFile(os.path.join(ASSETS_DIR, string_utils.unique_name("object-")))
+
+    if file_name is None:
+        file_name = string_utils.unique_name("object-")
+
+    test_file = TestFile(os.path.join(ASSETS_DIR, file_name))
     with open(test_file, "wb", opener=ensure_directory_opener) as file:
         file.write(os.urandom(size))
     logger.info(f"File with size {size} bytes has been generated: {test_file}")